Given the set a = {x | x ＜ - 1 or X ＞ 2}, B = {x | 4x-p ＜ 0}, if AB, the value range of real number P

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• 1. If the set {x | x + a = a | x |, X ∈ r} is a single element set, then the value range of real number a is______ ．
• 2. Let a be a set of real numbers. If a belongs to a, then 1 / 1-A belongs to a and 1 does not belong to A. It is proved that if a belongs to a, then 1-1 / a belongs to a
• 3. If a belongs to real number set and (1-A) / (1 + a) belongs to {a}, then a =?
• 4. Let the elements of a set be real numbers and satisfy: 1.1 ∈ a; 2. If a ∈ a, then 1 / (1-A) ∈ a (1) If 2 ∈ a, try to find the set a (2) If a ∈ a, try to find the set a (3) Can set a be a single element set? If so, find the set. If not, explain the reason To correct the mistake, the title "1.1 ∈ a" should be "1 &; a".
• 5. Let a be a set of real numbers and satisfy the following conditions: if a belongs to a, then 1 / 1-A belongs to A. prove (1) if 2 belongs to a, then there must be two other elements in a (2) set a can't be a single element set. Thank you very much
• 6. If a ∈ a, then 1 + A1 − a ∈ a, then the product of all elements in a is () A. 1b. - 1C. ± 1D. It is related to the value of A
• 7. F (x) = ㏒ {[x power of 1 + 2 + x power of 3 + The x power of + (n-1) + the x power of n × a] / N}, a is a real number , n is any given positive natural number and N ≥ 2, if f (x) is meaningful when x ∈ (- ∞, 1], the value range of a is obtained
• 8. If f (x) = (x + a) cubic has f (1 + x) = - f (1-x) for any real number, then f (2) + F (- 2)=
• 9. Let f (x-1 / x) = the square of X divided by the fourth power of 1 + X
• 10. Let f (x) = x power of 4 divided by (x power of 4 + 2), if 0
• 11. Given the set a = {xiax ^ 3 + x ^ 2-x = 0}, if the set a is a single element set, then the value range of real number a is_______ . 1. Given the set a = {xiax ^ 3 + x ^ 2-x = 0}, if the set a is a single element set, then the value range of real number a is_______ . 2. Given the set a = {xiax ^ 2 + X + 1 = 0, X ∈ r}, and a ∩ {XIX ≥ 0} = & # 8709;, then the value range of real number a is --.
• 12. Given the set a = {x | AX3 + ax2-x = 0}, if the set a is a single element set, then the value range of real number a is______ ．
• 13. Given the set a = {x Ⅰ X & sup2; + (P + 2) x + 1 = 0, X ∈ r}, if a ∩ R + = empty set, find the value range of real number P
• 14. The set of real solutions of the equation X-2 = 0,
• 15. The set of real number solutions of equation x ^ 2-x = 2
• 16. The set of all real roots of the equation x & sup2; = x How to solve the equation x & sup2; = x is to write out the steps! Why a 0, a 1?
• 17. 1. Choose an appropriate method to represent the set clique which is composed of all the real roots of the equation x & # 178; - 2x-3 = 0. The answer is {3.0-1} why has 0? 2. There are 8 proper subsets of set {1,2,3}. Please list them! The second question is wrong, there should be 8, which 8? Not which 6!
• 18. The set of all real roots of the equation x ^ 2-2 = 0 The set of all real roots of the procedure x ^ 2-2 = 0 Let the real root of the equation x ^ 2-2 = 0 be x and satisfy the condition x ^ 2-2 = 0. Therefore, it is expressed as a = {x ∈ R I x ^ 2-2 = 0} What do you mean "and satisfy the condition x ^ 2-2 = 0"? Can r use other common number sets, such as Q or Z
• 19. Is the real solution of equation x2 + 2 = 0 a set?
• 20. The set of composition of real number solutions of equation x2-2 = 0